Lumber-jointing machine.



Patent-ed May 2|, |90I.

w. A. FIRSTBRUOK. LUMBER JOINTINGMAGHINE.

(Application led July 9, 1900.) (No Model.) 4 Sheets-Sheet I.

' I 71 vena me Nonms PETEws co. PMoro-Lnno., WASHINGTON. u. c.

No..674,368. A Patented May 2|, l90l.

' W. A. FIRSTBROK. f

VLUMBER JOINTING MACHINE.

(Applicatouled July 9, 1900.)

(No Model.) 4 heetsSheef 2.

b/fm2?" m "3.32m

No. 674,368. Patented. May 2|, |90I. W. A. FIRSTBRGU'K. LUMBEB J'OINTING MACHINE.

v (Application med July 9, 1900.) (No Pllodelz)` 4 sheets sheet 3.

Z'L/'nesses: Inznorx' TH: Nnnms PETERS cc. Mofo-uma, wAsmNcvoN. n. c

No. 674,368. Patented May 2|, 190|.

W. A. FIRSTBBUK.

LUMBEB JOINTING MACHINE.

(Application med 'July 1900.) (No Model.) 4 Sheets-Sheet 4.

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m: ucums PETERS cc. PHOTQLITHD., WASHINGTON. D C,

UNITED STATES vPATENT OFFICE.

WILLIAM A. FIRSTBROOK, On TORONTO, CANADA.,

LUMBERJOINTING MACHINE.

SPECIFICATION forming' part of LettersjPatent N o. 674,368, dated May 241, 1901. Application flled July 9, 1,900. Serial No. 22,944. (No inodel.)

To all whom it may concern:

Be it known that I, WILLIAM A. FIRST- BROOK, a subject of the Queen of Great Britain, residing at Toronto, in the Dominion of Canada, have invented certain new and useful Improvements in Machines for Jointng and Setting Up Sections of Lumber, of which the following is a full, clear, and exact description.

My invention relates to machines for jointing and setting up sections of lumber, and more particularly to machines for jointing and setting up sections of lumber for making boX-shooks and similar purposes where sets or superficies are made up of jointed sections.

My invention further relates to a machine in which the sawed sections of lumber, sawed to length and width, areautomatically fed into the machine in sets, jointed uponv their abutting edges, and then set up ready for use.

Furthermore, my present invention is an adaptation of `and improvement upon my former invention upon which I made application for Letters Patent of the United States, tiled February 26, 1900, Serial No. 6,523.

Referring to the drawings herewith consisting of four sheets, in which like characters of reference refer to like parts, Figures l and 2 taken together constitute a longitudinal elevation of my invention, the verticalbroken lines indicating the line ot' union between the two sheets. Figs. 3 and 4 taken together constitute a plan View of the same, the transT verse broken lines indicating the line of unio between the two sheets.

In the following description I will indicate, first, the principal features of my invention; second, the method of operation, and, third, the detail mechanism.

A is the bed of the machine, which is supported upon pillars B.

C is the bed of the hopper attachment, which rests upon supports D, the supports adjacent to the end of the bed A being rigidly secured to the pillar B.

E is a traveling bed which travels upon ways upon the bed A and which is made up of pivoted sections, making it an endless chain. The inner faces of these sections are provided with teeth or lugs, as shown in E', to engage with the sprockets, as hereinafter described'.

F and F' are sprockets mounted upon shafts F2 and F3, respectively jointed to the frame and the machine. r These sprockets carry the traveling bed E.

G is a pulley mounted upon a shaft G', journaled in the frame and the machine, which, through the pinion G2 and a spur-gear G3, transmits power to the sprocket F, which actuates the bed E. The bed E therefore transmits motion to the sprocket F.

The shaft F3 carries a gear F4,which, through a gear F5, gives motion to a gear H/, mounted upon a shaft H. The shaft H carriesra series of sprockets I, (see Fig. 3,) which carry sprocket-chains J, engaging with the sprockets I upon the shaft H and with sprockets K upon the shaft K.

L is a hopper mounted upon the bed C, which retains the stacks of lumber-sections and which is. provided at its end adjacent to the machine proper with an adjustable end, as shownat L', to regnlatethe width of the transverse slot through which the lumbersections find egress, as hereinafter more fully described.

M is a series of reciprocating tread-rollers which hold the lumber down firmly upon the bed E.

Nisa series of tread-rollers which yhold the sections firmly in place while in process of being jointed upon the one side.

O is a series of set-overs which bring the sections in line forjointing.

P is a series of jointers which joint the sec- IOO U and U represent the setting-up mechanism, which consists of heavy springs U and U', which operate as hereinafter described.

Second, the method of operation: In the drawings I have shown a machine constructed p for jointing and setting up four sections to form a shook or superficies. The sections of lumber,sawed to length and width,are stacked in the hopper L, the bottom set resting upon the bed C. The lugs J upon the sprocketchainsJ strike the ends of the bottom set and drive the bottom set forward onto the bed E and under the tread-roller M. The treadrollers 'M rise at the proper time, and the setovers O bring the edges of the sections to be jointed on the one side in line with the jointers P. Thus alined the rollers M grip the sections again and hold them in line while they are carried under and held by the treadrollers N. Thereupon the jointers P joint the sections upon the first edges. The sections thus jointed on the one edge are carried forward by the bed E under the reciprocating tread-rollers Q, and then are set over and alined for jointing upon the second or opposite edges by the set-overs R. Thence carried forward under the rollers Q and under the tread-rollers T the sections are jointed by the jointers S. Thus jointed the set of sections is carried forward until it rests upon an extension of the bed, as shown at V. The next incoming set of sections will strike the ends of the section resting upon the bed V and will drive that set forward. The ends of the two interior sections will be pinched together by the springs U pressing upon their outer edges and by a shear motion will be set up in joint. The springs U' will engage the two outer sections and by a similar shear action will set up in joint the two interior sections with the two outer sections.

It is evident that the number of sections to be jointed and set in a'set is a matter of lnechanical construction and adaptation involving no departure from the nature of my invention.

Third, the detail mechanism The traveling bed E, as above described, is made up of sections pivoted or hinged together to form an endless chain and is driven forward by the sprockets F engaging with the teeth E. It is evident that in traveling over the bed A it will form a perfectly horizontal and continuously-traveling surface. These sections are routed transversely to a sufticient depth to constitute a series of longitudinal recesses to permit of the necessary drop of the cutterheads of the jointers P and S. 'Fliese recesses are indicated at E2 in Figs. 3 and 4.

The feeding mechanism needs only the further description that the delivery of sections will be synchronized to the action of the jointing mechanism. Hence the necessity of a positive delivery such as shown. It is also evident that instead of the gearing and chains shown I may employ reciprocating shovers, for example, to deliver the sections in sets.

Referring now to the tread-rollers M, I have shown a construction identical with that shown and claimed in my said former application, Serial No. 6,523, and the tread-rollers Q are identical in construction with M. The rollers INI have upwardly-projecting stems M', which pass through cross-heads M2, which are secured to studs M3, secured t0 the frame carrying said rollers. A helical spring is interposed between said cross-head M2 and the bearing-block of said rollers to force the rollers down, giving a contin tions tread upon the lumber passing underneath them; but it is at once evident that in order that the setover O may operate the rollers M must be raised bodily out of con tact with the board or si rip traveling under them. A fra ino-sumpport A', supported by brackets 'A2, secured to the bed A, carries an internal cage which supports the bearing-blocks of the rollers M. Mounted upon the frame A are brackets M, in which are pivoted bell-crank levers M5, the upper members of which are connected by rods M,A The lower members connect with rods M7, which are pivoted to the cage carrying the blocks of the rollers`M. By the action oftheselovers the entire frame or cage, carrying with it the rollers, is raised, freeing the rollers from contact with the lumber.

Referring especially of Fig. 3, F8 is a disk mounted rigidly upon the shaft F3, which is provided witha lug F11. of the machine is a lever-arm F6, the lower end of which is actuated .or tripped by the lug F11. This lever FG connects with a pivoted lever-arm F7, which passes transversely under the machine and trips the valve of an air-cylinder MS. The piston of the air-cylinder MS is connected in the usual manner with a bell-crank lever M5. It will thus be understood that the reciprocating action of the tread-rollers is actuated and timed by the rotation of the shaft F3.

The series of tread-rollers N and T have the same construction,with the exception that they are not made reciprocating.

The jointers I consist of cutter-heads of the ordinary type used in matching lumber. The heads depend over the traveling bed E and into thc longitudinal grooves E2 in order to have frce access to the edges of the lumber-sections. The jointers are mounted upon vertical shafts journaledin hangers bracketed tothe frame A and are belt-driven inthe ordinary manner.

The set-overs O and R are of identical construction arranged on opposite sides of the machine and are substantially identical in mechanism with the set-overs shown in my said formerapplication, Serial No. (5,523. Referring now to the set-overs O, (clearly shown in Fig. 3,) O represents transverse rods which support the cross-heads O2, which carry the shovers The cross-heads O2 are connected with the rod O1, which is an extension of the piston of the air-cylinder O5. The cylinder O5 is actuated by means of a lever F, identi- Pivoted to the frame l IOO IOS

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IIS

cal in construction with the lever F6 and actuated bythe lug F11. Thelever F9 connects with a connecting-rod F19 at its upper end, which actuates a trip upon the air-cylinder O5. Thus it will be seen that the set-over is actuated by and timed to the rotationof the shaft F8. By this construction I am able to joint a plurality of sections at the same time,

tions and forcing them into joint by a shear action. The curved springs U' are-similarly constructed and act upon the two outer sections in like manner. t

Having thus described my invention and its method of operation, what l claim is- 1. A jointing-machine consisting of a traveling bed, a plurality of reciprocating treadrollers, a plurality of set-overs, and a plurality of jointers for jointing the sections of a set of lumber-sections upon the one edge, reciprocating tread-rollers, set-overs and jointers of like construction for jointing the sections of a set of sectionsof lumber upon the other edge, and means for actuating said several mechanisms substantially as and for the purposes set forth.

2. A jointing and setting-up machine, consisting of a traveling bed, a plurality of reciprocating tread-rollers a plurality of setovers, and a plurality of jointers, for jointing the sections of a set of lu mber-sections upon the one edge, reciprocating tread-rollers, setovers, and jointers of like construction for jointing the sections of a set of lumber-sections upon the other edge, means for actuating said several mechanisms, and a settingup device consisting of a bed, and springs secured thereto and acting inwardly in pairs to set up in joint the lumber-sections, substantiall'y as and for the purposes set forth.

3. A jointing and setting-up machine, consisting of a traveling bed, a hopper and feeding mechanism for feeding the sets of sections of lumber forward onto the traveling bed, a plurality of reciprocating tread-rollers, a plurality of set-overs, a plurality of jointers and a second series of tread-rollers, set-overs and jointers for jointing the opposite edges of the sections of the sets of lumber simultaneously and means for setting up the sections of a set of lumber as fed forward from the traveling bed, means for actuating said several mechanisms, which are coordinate to each other iny time and sequence, substantially as and for the purposes set forth.

4. A jointing and setting-up machine; consisting of a continuously-traveling bed and an intermittent feeding mechanism, a series of tread-rollers for holding the sections in place while being jointed on the one side and a set of set-overs for setting up the sections for such purposes, and a second set of tready rollers for like purpose, and jointers for suc-` cessively-jointing the opposite edges of the sets of lumber, and setting-up mechanism for setting up the sections in sets by a shear` action and mechanism for actuating said several mechanisms in time and sequence substautially as and for the purposes set forth. l 5. `A jointing and setting-up machine, for

jointing and setting up lumber in sets of sections consisting of a continuously-traveling bed, two series of jointers having continuous motion in rotation,- two series of reciprocating tread-rollers, two series of set-overs and two series of yielding non-reci procating treadrollers, in combination with a feeding device coordinated in action to the action of the reciprocating rollers and a setting-up mechanism consisting of curved springs secured in pairs to the auxiliary bed of the machine and acting inwardly upon the sections of the set as shoved forward and pushing them into joint by a shear action substantially as and for the purposes set forth.

6. In combination with a jointing-machine; a setting-up mechanism consisting of abed in place with the traveling bed of the jointing-machine, and a series of springs secured to said bed at their outer ends and curved inwardly, and arranged in pairs to fence in and joint the sections by a shear action as the lumber is driven forward, substantially as and for the purposes set forth.

7. The combination of a feeding mechanism actuated by and timed to the jointingmachine, consisting of a plurality of continuously-traveling chains provided with lugs for engaging the ends of the lumber-sections and a hopper for holding the lumber and permitting egress of the bott-om set of sections only, with a jointing-machine provided with a continuously-traveling bed, a plurality of continuously-rotating jointers arranged in sets for jointing the'lumber-sections on opposite sides successively, a plurality of set-overs for bringing the lumber to place, means for actuating the same governed in time by the progress of said traveling bed, a plurality of sets of tread-rollers and means for reciprocating the same timed to the action of said set-overs, and a duplicate set of set-overs and tread-rollers substantially as and for the purposes set forth.

8. The combination of a feeding mechan-y ism actuated by and timed to the jointingmachine, consisting of a plurality of continuously-traveling chains provided with lugs for engaging the ends of the lumber-sections and a hopper for holding the lumber and permitting egress of the bottom set of sections only, with a jointing-machine provided with a continuously-traveling bed, a plurality of continuously-rotating jointers arranged in sets for jointing the lumber-sections on opposite sides successively, a plurality of set-overs for bringing the lumber to place, means for IIO . actuating the same governed in time by the zt shear action, substantially as and for the Io progress oi said traveling bed, a plurality of purposes set fort-h. sets of tread-rollers and means for reoipro- In wit-ness whereof I have hereunto set my eating the same timed to the action of said hand in the presence of two witnesses.

set-overs, and a dn pleate set of set-overs and 1 t-l'eacl-rollersin combination with a setting-up l WILLIAM A' h IRSTbROOK' mechanism Consisting of a bed in plane with Vitnesses: said traveling bed and inwardly acting D. B. TUTTLE, springs in pairs forsetting up the sections by A. XV. PLUMLEY. 

